Foster City, California

Population, housing costs, incomes, jobs, commuting and climate in Foster City, compared with California and the U.S. using Census records and their margins of error.

Foster City city · Incorporated city · Census GEOID 0625338 · California directory

Population · July 1, 2025
32,411 PEP Vintage 2025
Change · 2024 to 2025
-0.3% -105 residents
Household income
$199,143 ACS 2020–2024 · ±$11,786
Home value
$1,838,200 ACS 2020–2024 · ±$78,375
Monthly gross rent
At least $3,500 ACS 2020–2024 · MOE unavailable
Median age
39.5 years ACS 2020–2024 · ±1.5
Foster City, California location in the United States Foster City, California
Census 2024 simplified state outlines; 2025 Gazetteer internal points. Alaska and Hawaii use separate insets. Approximate locator; city boundaries are not shown. Map sources.

Foster City is an incorporated city in San Mateo County, California, part of the San Francisco-Oakland-Fremont, CA metropolitan area. With 32,411 residents on July 1, 2025, it ranks 229th in California and 1,278th nationally among Census places. Its population fell by 105 (0.3%) in the year to July 2025; since April 2020 it has declined 4.1%. Median gross rent in the 2020–2024 survey is At least $3,500 a month. Median household income is $199,143, 100.9% above the California median.

What stands out in Foster City?

Compared with other California places, Foster City is most distinctive for higher home values, more foreign-born residents and a lower poverty rate. Each statement below uses reliable estimates only, and survey differences from the state exceed their combined 90% margin of error.

  • Median home value: $1,838,200, 2.5 times the California median ($734,700); higher than 98% of 444 California places with reliable estimates. It ranks 7th of 444 in California.
  • Foreign-born residents: 49.5%, 22.5 percentage points above the California rate (27.0%); higher than 97% of 448 California places with reliable estimates.
  • Poverty rate: 4.1%, 7.9 percentage points below the California rate (12.0%); lower than 97% of 417 California places with reliable estimates.
  • Median household income: $199,143, 2.0 times the California median ($99,122); higher than 95% of 466 California places with reliable estimates.
  • Households with a broadband subscription: 98.1%, 4.7 percentage points above the California rate (93.5%); higher than 95% of 478 California places with reliable estimates.

How Foster City compares with California and the U.S.

City, state and U.S. figures · ACS 2020–2024, LODES 8.4 and PEP Vintage 2025 · position among California places with reliable estimates
Measure Foster City California U.S. Position in California
Population change since April 2020 PEP Vintage 2025 -4.1% — — lower than 77% of 483 California places
Residents per square mile of land PEP 2025 / Gazetteer 2025 8,558 — — higher than 90% of 483 California places
Median household income B19013 $199,143 ±$11,786 $99,122 $80,734 higher than 95% of 466 California places
Median home value B25077 $1,838,200 ±$78,375 $734,700 $332,700 higher than 98% of 444 California places
Renters paying 30%+ of income on rent B25070 42.1% ±6.5 pp 55.3% 51.1% lower than 91% of 453 California places
Homeownership rate B25003 50.8% ±2.9 pp 55.9% 65.2% lower than 76% of 480 California places
Median age B01002 39.5 years ±1.5 37.9 years 38.9 years higher than 54% of 483 California places
Adults 25+ with a bachelor’s degree or higher B15003 73.8% ±3.2 pp 37.1% 35.7% higher than 92% of 465 California places
Poverty rate B17001 4.1% ±1.1 pp 12.0% 12.5% lower than 97% of 417 California places
People without health insurance B27010 2.2% ±0.6 pp 6.6% 8.4% lower than 93% of 385 California places
Households with a broadband subscription B28002 98.1% ±3.5 pp 93.5% 91.0% higher than 95% of 478 California places
Unemployment rate (civilian labor force) B23025 4.9% ±1.2 pp 6.6% 5.2% lower than 79% of 375 California places
Foreign-born residents B05002 49.5% ±2.4 pp 27.0% 14.1% higher than 97% of 448 California places
Jobs located in the place per 100 residents LODES 8.4 / PEP 63.2 — — higher than 83% of 476 California places
Change in local jobs since 2019 LODES 8.4 +10.7% — — higher than 81% of 470 California places
Workers who work from home B08301 34.2% ±2.7 pp 17.2% 15.1% higher than 91% of 397 California places
Commutes of 45 minutes or longer B08303 20.6% ±3.0 pp 19.4% 16.5% higher than 58% of 424 California places
Households without a vehicle B08201 5.7% ±1.6 pp 7.1% 8.4% higher than 53% of 327 California places

Positions compare Foster City with California places in this directory whose estimate has a coefficient of variation of 30% or less (survey measures) or a published PEP value. The marker runs from the lowest value (left) to the highest (right); it is a description, not a score or a recommendation.

How many people live in Foster City?

The latest official estimate is 32,411 residents on July 1, 2025. It ranks 1,278th by population nationally and 229th in California among this directory’s PEP places. Population changed by 105 residents between the 2024 and 2025 estimates. These are annual estimates, not census enumerations.

Foster City population estimates, 2020 through 2025, Census Vintage 2025. Vertical range 30,790 to 34,749; axis does not start at zero. Residents · axis does not start at zero 34,749 30,790 2020 2021 2022 2023 2024 2025
Annual July 1 estimates, all from Vintage 2025. Revised April 1, 2020 estimate base: 33,807; the base is separate from July 2020.
Population history · PEP Vintage 2025
Reference date Population Change from previous estimate
July 1, 2020 33,737 Separate from April 2020 base
July 1, 2021 32,751 -986
July 1, 2022 32,448 -303
July 1, 2023 32,430 -18
July 1, 2024 32,516 +86
July 1, 2025 32,411 -105

From the revised April 2020 base to July 2025, the change is −1,396 residents (-4.1%). This is a within-vintage comparison. Boundary adjustments can affect both the estimates and their interpretation.

Download this population chart (SVG) · Official population release

Where are the boundaries?

Entity and stable identifier
Foster City city, California · Incorporated city · 0625338
Counties or equivalents · 2025 boundaries
San Mateo County
Metropolitan or micropolitan context · July 2023 delineations
San Francisco-Oakland-Fremont, CA — Metropolitan Statistical Area County associations use Census PEP county place parts. Each county is matched by FIPS code to the official CBSA list; a city can span several counties or statistical areas. A missing association can reflect an area outside a CBSA or changed county codes between vintages. City figures on this page remain place-level statistics.
Land area
3.8 square miles · 2025 Gazetteer
Water area
16.0 square miles · 2025 Gazetteer
Approximate population density
8,558 residents per square mile of land
Internal point
37.56482°, -122.250782° · Census geographic reference point

Density divides the July 2025 estimate by 2025 Gazetteer land area, so it is approximate. The internal point is a locator, not an address. Census place profile reference .

Income and poverty

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe City estimate ± MOE State estimate ± MOE U.S. estimate ± MOE
Median household income Households · USD/year $199,143 ±$11,786 $99,122 ±$310 $80,734 ±$166
Per-capita income Total population · USD/year $98,585 ±$4,705 $49,513 ±$168 $44,673 ±$122
Population with poverty status determined · B17001 · ACS 2020–2024 People with poverty status determined: 32,504
Category Count ± MOE Share ± MOE (pp)
Below the poverty level 1,334 ±367 4.1% ±1.1 pp

Household income combines the incomes of everyone in a household; per-capita income divides all income by every resident. The poverty rate is 4.1% (±1.1 percentage points) under the official Census definition.

Home values, rent and tenure

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe City estimate ± MOE State estimate ± MOE U.S. estimate ± MOE
Median owner-occupied home value Owner-occupied housing units · USD $1,838,200 ±$78,375 $734,700 ±$1,307 $332,700 ±$236
Median gross rent Renter-occupied units paying cash rent · USD/month At least $3,500 MOE unavailable $2,036 ±$5 $1,413 ±$2
Occupied housing units by tenure · B25003 · ACS 2020–2024 Occupied housing units: 12,998
Category Count ± MOE Share ± MOE (pp)
Owner occupied 6,606 ±412 50.8% ±2.9 pp
Renter occupied 6,392 ±361 49.2% ±2.5 pp

Owner-occupied units make up 50.8% of occupied housing. Gross rent includes estimated tenant-paid utilities and home values are owners’ own estimates; both cover 2020–2024 leases and homes rather than current listings. The median home value is 9.2 times the median household income.

See housing units, occupancy, rent burden and homeowner costs .

Monthly rent by bedroom count

Median monthly gross rent by bedrooms · ACS 2020–2024 · 2024 dollars
Bedrooms Monthly gross rent 90% margin of error Precision
No bedroom (studio) $3,144 ±$310 Estimate with MOE
1 bedroom $3,280 ±$154 Estimate with MOE
2 bedrooms At least $3,500 Unavailable Open-ended range
3 bedrooms At least $3,500 Unavailable Open-ended range
4 bedrooms At least $3,500 Unavailable Open-ended range
5 or more bedrooms At least $3,500 Unavailable Open-ended range

Census table B25031 describes renter-occupied units paying cash rent within this exact place geography. Gross rent includes contract rent and estimated tenant-paid utilities. These survey medians include existing leases across 2020–2024; they are not current apartment listings. Missing categories stay unavailable, and open-ended medians remain ranges. Small bedroom categories can have large margins of error. Download source values and provenance .

Employment among residents

Labor-force participation · B23025 · ACS 2020–2024 Population age 16 and older: 26,272
Category Count ± MOE Share ± MOE (pp)
In the labor force 17,702 ±616 67.4% ±1.8 pp
Not in the labor force 8,570 ±568 32.6% ±2.0 pp
Civilian labor-force status · B23025 · ACS 2020–2024 Civilian labor force: 17,641
Category Count ± MOE Share ± MOE (pp)
Civilian employed 16,785 ±634 95.1% ±1.1 pp
Civilian unemployed 856 ±222 4.9% ±1.2 pp

These estimates describe residents of Foster City wherever they work; jobs at workplaces inside the city appear under jobs located in Foster City. They are 2020–2024 averages, not a current monthly unemployment rate.

Which industries employ residents?

Professional, scientific, management, administrative and waste services is the largest of the published broad industry groups among employed residents: 29.4% (4,943 people; ±2.6 percentage points). The estimate covers residents’ industries wherever they work, rather than employers located inside the place.

Industry of employed residents · C24030 · ACS 2020–2024 Civilian employed population age 16 and older: 16,785
Category Count ± MOE Share ± MOE (pp)
Agriculture, forestry, fishing, hunting and mining 0 ±41 · low precision 0.0% ±0.2 pp · low precision
Construction 468 ±172 2.8% ±1.0 pp
Manufacturing 2,263 ±309 13.5% ±1.8 pp
Wholesale trade 291 ±106 1.7% ±0.6 pp
Retail trade 888 ±192 5.3% ±1.1 pp
Transportation, warehousing and utilities 814 ±226 4.8% ±1.3 pp
Information 1,544 ±315 9.2% ±1.8 pp
Finance, insurance, real estate, rental and leasing 1,486 ±269 8.9% ±1.6 pp
Professional, scientific, management, administrative and waste services 4,943 ±476 29.4% ±2.6 pp
Education, health care and social assistance 2,607 ±326 15.5% ±1.9 pp
Arts, entertainment, recreation, accommodation and food services 590 ±161 3.5% ±1.0 pp
Other services, except public administration 501 ±150 3.0% ±0.9 pp
Public administration 390 ±115 2.3% ±0.7 pp

Occupations among employed residents

Broad occupation groups · C24010 · ACS 2020–2024 Civilian employed population age 16 and older: 16,785
Category Count ± MOE Share ± MOE (pp)
Management, business, science and arts 12,660 ±649 75.4% ±2.6 pp
Service occupations 1,022 ±224 6.1% ±1.3 pp
Sales and office 2,104 ±292 12.5% ±1.7 pp
Natural resources, construction and maintenance 417 ±139 2.5% ±0.8 pp
Production, transportation and material moving 582 ±214 3.5% ±1.3 pp
Selected detailed occupation groups · C24010 · ACS 2020–2024 Civilian employed population age 16 and older: 16,785
Category Count ± MOE Share ± MOE (pp)
Management occupations 3,351 ±342 20.0% ±1.9 pp
Computer and mathematical occupations 3,473 ±422 20.7% ±2.4 pp
Educational instruction and library occupations 540 ±131 3.2% ±0.8 pp
Health practitioners and technical occupations 749 ±241 4.5% ±1.4 pp
Sales and related occupations 978 ±209 5.8% ±1.2 pp
Transportation occupations 335 ±206 · low precision 2.0% ±1.2 pp · low precision

The detailed groups are subsets of the broad groups and should not be added to them.

How residents get to work

Means of transportation to work · B08301 · ACS 2020–2024 Workers age 16 and older: 16,647
Category Count ± MOE Share ± MOE (pp)
Drove alone 8,630 ±691 51.8% ±3.7 pp
Carpooled 1,253 ±280 7.5% ±1.7 pp
Public transportation 490 ±139 2.9% ±0.8 pp
Taxi or ride-hailing 37 ±33 · low precision 0.2% ±0.2 pp · low precision
Motorcycle 10 ±15 · low precision 0.1% ±0.1 pp · low precision
Bicycle 159 ±85 · low precision 1.0% ±0.5 pp · low precision
Walked 276 ±138 1.7% ±0.8 pp
Other means 96 ±49 · low precision 0.6% ±0.3 pp · low precision
Worked from home 5,696 ±499 34.2% ±2.7 pp
Travel time to work · B08303 · ACS 2020–2024 Workers age 16+ who did not work from home: 10,951
Category Count ± MOE Share ± MOE (pp)
Under 15 minutes 2,015 ±305 18.4% ±2.5 pp
15–29 minutes 3,718 ±446 34.0% ±3.5 pp
30–44 minutes 2,964 ±376 27.1% ±3.0 pp
45–59 minutes 1,320 ±294 12.1% ±2.6 pp
60 minutes or longer 934 ±201 8.5% ±1.8 pp
Household vehicle availability · B08201 · ACS 2020–2024 Households: 12,998
Category Count ± MOE Share ± MOE (pp)
No vehicle available 742 ±207 5.7% ±1.6 pp

Travel times cover workers who did not work from home. Vehicle availability is counted per household, not per driver.

Households and residents

Median age is 39.5 years (±1.5). The demographic profile covers age groups, race and Hispanic origin, household types, nativity, languages, education and moves, each compared with California and the U.S.

Read Foster City demographics →

How many jobs are located in Foster City?

Employers in Foster City reported 20,494 jobs in 2023, +10.7% compared with 2019 (18,521 jobs). That is 63.2 jobs for every 100 residents in the July 2023 population estimate. These are jobs at workplaces inside the city limits, wherever the workers live, unlike resident employment figures.

Jobs located in Foster City by industry (NAICS sector) · 2023 · LODES 8.4
Industry Jobs Share of local jobs California share
Professional, scientific and technical services 9,619 46.9% 7.9%
Information 1,817 8.9% 4.4%
Administrative, support and waste management services 1,478 7.2% 6.2%
Accommodation and food services 1,402 6.8% 9.3%
Health care and social assistance 1,015 5.0% 16.1%
Transportation and warehousing 966 4.7% 4.4%
Retail trade 843 4.1% 8.7%
Finance and insurance 685 3.3% 2.9%
Educational services 664 3.2% 8.6%
Construction 395 1.9% 5.2%
Management of companies and enterprises 334 1.6% 1.5%
Arts, entertainment and recreation 286 1.4% 2.1%
Other services, except public administration 226 1.1% 3.2%
Real estate and rental and leasing 218 1.1% 1.7%
Public administration 213 1.0% 4.2%
Wholesale trade 175 0.9% 3.7%
Manufacturing 148 0.7% 7.4%
Utilities 10 0.0% 0.6%
Monthly earnings and worker age · jobs located in Foster City · 2023
Group Jobs Share California share
$1,250 a month or less 1,434 7.0% 15.5%
$1,251 to $3,333 a month 2,358 11.5% 24.9%
More than $3,333 a month 16,702 81.5% 59.6%
Age 29 or younger 3,101 15.1% 20.0%
Age 30 to 54 12,997 63.4% 55.2%
Age 55 or older 4,396 21.5% 24.8%

Professional, scientific and technical services is the largest sector for jobs located in Foster City (46.9% of local jobs, compared with 7.9% statewide). Earnings bands describe what each job pays per month, not household income, and a worker can hold more than one job.

Source: Census LEHD Origin-Destination Employment Statistics (LODES) 8.4, workplace area characteristics, all jobs, second-quarter reference date. Census blocks are summed to 2024 place boundaries. Includes private, state and local government and federal civilian jobs; excludes self-employment, military and informal work. Counts include confidentiality noise and are less precise for small places.

Nearby station climate normals

SAN FRANCISCO INTL AP, CA (NOAA station USW00023234) is approximately 11.7 km from this place’s Census internal point. The table describes that station’s 1991–2020 climate normals, using NOAA’s corrected version 1.0.1. It is historical station context, rather than a forecast or an average across the city.

SAN FRANCISCO INTL AP monthly average daily high and low temperature, 1991–2020 NOAA normals. Solid line: high; dashed line: low. Vertical scale 40 to 80 degrees Fahrenheit. Temperature (°F) 80 40 Jan Mar May Jul Sep Nov
Average daily high: solid line. Average daily low: dashed line. NOAA station normals, 1991–2020; the table gives all monthly values.
SAN FRANCISCO INTL AP · 1991–2020 monthly normals
Month Average daily high (°F) Average daily low (°F) Precipitation (inches)
January 58.0 44.5 3.89
February 60.8 46.1 3.96
March 63.4 47.6 2.73
April 65.6 49.1 1.36
May 68.3 51.6 0.48
June 71.5 53.6 0.14
July 72.6 55.3 0.00
August 73.4 56.4 0.04
September 74.8 55.9 0.07
October 72.3 53.4 0.79
November 64.3 48.5 2.04
December 58.2 44.6 4.14

Station location: 37.6197°, -122.3647°; elevation 2.4 meters. We select the nearest station within 25 km with all 12 months of high/low temperature and precipitation marked “S” (standard) by NOAA. Standard normals meet NOAA’s data-availability rules and can include estimated missing months. Distance is a straight-line great-circle calculation from the Census internal point. Coastal exposure, elevation and urban conditions can differ between the station and an address. NOAA normals and definitions · Original station CSV · Retained station data, flags and matching details .

Check a specific address before moving

City averages help compare places. A particular home’s school assignment, transit service and flood-map coverage need checks at the address.

  • FEMA Flood Map Service Center — search the address, read the effective map and its date, and check any map changes. An unmapped location does not establish an absence of flood risk.
  • NCES public school district directory — find district contact information, then use the district’s official address locator or enrollment office to confirm school assignment. A city name or district boundary alone does not assign a school.
  • FCC National Broadband Map — check reported service at the exact location, then confirm availability and terms with the provider.
  • Check the official transit operator’s route map and timetable for the address and your actual travel hours; the citywide commuting shares above do not measure service on a particular street.

Sources and data notes

Population: Census PEP Vintage 2025, published May 14, 2026. Survey measures: ACS 2020–2024 five-year estimates, published January 29, 2026, dollar figures in 2024 dollars. Geography: Census 2025 Gazetteer, with simplified 2024 state outlines for the locator. Statistical estimates and derived values use the same retained records in profiles, comparison, filters and downloads.

Climate uses NOAA 1991–2020 station normals (v1.0.1); jobs located in the city use LEHD LODES 8.4. Crime, school assignments and hazard scores are not inferred from these datasets, and missing values are never treated as zero. Inspect original sources, read calculation details, download this place’s source observations , or submit a correction.

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